US4291769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foam fire extinguishing unit for rescue vehicle
Assignee: Individual
•
Filing: 1979-10-22
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Granted: 1981-09-29
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Expires: 1999-10-22
Abstract
Abstract New foam fire extinguishing unit for incorporation into rescue cars is described. It consists of a container which contains a liquid adapted to be used for foam production without adding further ingredients. To the container a device is connected which feeds the fire extinguishing liquid under pressure from the container to a hand-held foam generating nozzle. The device may comprise a motor driven pump or an air pressure device. The foam fire extinguishing unit may be a mixture of water and "Light Water". The new foam fire extinguishing unit can also be used as a stationary unit in work shops and warehouses.
Inventors
- 👤 Erich Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:49
CPC Classifications
A; A62; A62C; A62C5/00; A62C5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
349 words
A quick-use foam fire extinguishing unit, comprising: a container; a premanufactured mixture of water and a conventional watery film-forming foam medium in said container; a tubelike filling pipe mounted on an upper wall of said container for facilitating a filling of said container with said mixture; an outlet adjacent a bottom wall of said container; a pump having an inlet at the bottom end thereof and an outlet spaced upwardly from said inlet; a first outlet pipe connected to and extending between said outlet in said container and said inlet to said pump; a valve in said first outlet pipe between said container outlet and said inlet to said pump; a hand operated lever operatively connected to said valve for facilitating an opening and closing of said valve, said lever extending upwardly from the valve to a position above the top of the container with a horizontal portion extending along the top of the container; A switch mounted adjacent the top of said container adjacent said hand operated lever, said switch being actuated in response to a movement of said lever to a position corresponding to said valve being opened, wherein the horizontal portion directly abuts the switch for operation thereof; a motor operatively connected to said pump and electrically connected to said switch, said motor being actuated in response to said switch being actuated to thereby effect a driving of said pump; a hose reel having an inlet at the center thereof; a second outlet pipe connected to and extending between said pump outlet and said inlet on said hose reel; an elongated hose on said hose reel connected in fluid communication with said inlet on said hose reel; a hand held jet pipe connected to a free end of said hose and being movable independently of said hand operated lever; and a connection branch in said first outlet pipe located between said valve and said inlet to said pump and being adapted for connection to a water supply hose for cleaning said pump, said second outlet pipe and said hose following a use thereof with said mixture.
Claim 2
Dependent Claim
349 words
A quick-use foam fire extinguishing unit, comprising: a container; a premanufactured mixture of water and a conventional watery film-forming foam medium in said container; a tubelike filling pipe mounted on an upper wall of said container for facilitating a filling of said container with said mixture; an outlet adjacent a bottom wall of said container; a pump having an inlet at the bottom end thereof and an outlet spaced upwardly from said inlet; a first outlet pipe connected to and extending between said outlet in said container and said inlet to said pump; a valve in said first outlet pipe between said container outlet and said inlet to said pump; a hand operated lever operatively connected to said valve for facilitating an opening and closing of said valve, said lever extending upwardly from the valve to a position above the top of the container with a horizontal portion extending along the top of the container; A switch mounted adjacent the top of said container adjacent said hand operated lever, said switch being actuated in response to a movement of said lever to a position corresponding to said valve being opened, wherein the horizontal portion directly abuts the switch for operation thereof; a motor operatively connected to said pump and electrically connected to said switch, said motor being actuated in response to said switch being actuated to thereby effect a driving of said pump; a hose reel having an inlet at the center thereof; a second outlet pipe connected to and extending between said pump outlet and said inlet on said hose reel; an elongated hose on said hose reel connected in fluid communication with said inlet on said hose reel; a hand held jet pipe connected to a free end of said hose and being movable independently of said hand operated lever; and a connection branch in said first outlet pipe located between said valve and said inlet to said pump and being adapted for connection to a water supply hose for cleaning said pump, said second outlet pipe and said hose following a use thereof with said mixture.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-09-28 | 1985-03-30 | 1985-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-28 | 1989-03-30 | 1989-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-28 | 1993-03-30 | 1993-09-29 | $7700.00 | Window Closed / Lapsed |